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The relays are not meant to be endpoints, they are only meant to be dumb relays.
Yes, they are not meant to be endpoints, they are only meant to be dumb relays, but is this currently the case?
If most connect to the same big relays, is it really irrelevant which relay you choose? Are relays really fungible? Can you just spin up a new relay and have the same network effects as other relays?
Serious questions, I don't know the answer.